{% from "nhsuk/components/back-link/macro.njk" import backLink as nhsukBackLink %}
{% from "nhsuk/components/link/macro.njk" import link as nhsukLink %}
{% from "nhsuk/macros/attributes.njk" import nhsukAttributes %}

{#- Set variant for this component #}
{%- set variant = params.variant %}

{#- Set classes for this component #}
{%- set classNames = "nhsuk-breadcrumb" %}

{%- if variant == "reverse" and (not params.classes or not "nhsuk-breadcrumb--reverse" in params.classes) %}
  {%- set classNames = classNames ~ " nhsuk-breadcrumb--" ~ variant %}
{%- endif %}

{%- if params.classes %}
  {%- set classNames = classNames ~ " " ~ params.classes %}
{%- endif %}

{%- set ariaLabel = params.ariaLabel | default(params.labelText, true) | default("Breadcrumb", true) -%}

<nav class="{{ classNames }}" {%- if params.id %} id="{{ params.id }}"{% endif %} aria-label="{{ ariaLabel }}"
  {{- nhsukAttributes(params.attributes) }}>
  <ol class="nhsuk-breadcrumb__list">
{% for item in params.items %}
  {% if item.href %}
    <li class="nhsuk-breadcrumb__list-item">
      {{ nhsukLink({
        href: item.href,
        text: item.text,
        html: item.html,
        className: "nhsuk-breadcrumb__link",
        attributes: item.attributes
      }) | trim | indent(6) }}
    </li>
  {% endif %}
{% endfor %}
{% if params.text and params.href %}
    <li class="nhsuk-breadcrumb__list-item">
      {{ nhsukLink({
        href: params.href,
        text: params.text,
        className: "nhsuk-breadcrumb__link"
      }) | trim | indent(6) }}
    </li>
  {%- set lastHref = params.href %}
  {%- set lastText = params.text %}
{% else %}
  {%- set lastItem = params.items | last %}
  {%- set lastHref = lastItem.href %}
  {%- set lastText = lastItem.text %}
{% endif %}
  </ol>
  {{ nhsukBackLink({
    id: params.backLink.id,
    visuallyHiddenText: params.backLink.visuallyHiddenText | default("Back to"),
    text: params.backLink.text if (params.backLink.html or params.backLink.text) else lastText,
    html: params.backLink.html if (params.backLink.html or params.backLink.text),
    href: params.backLink.href | default(lastHref),
    type: params.backLink.type,
    classes: params.backLink.classes,
    attributes: params.backLink.attributes | default(lastItem.attributes),
    variant: params.backLink.variant | default(variant),
    element: params.backLink.element
  }) | trim | indent(2) }}
</nav>